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Implementation of a Parallel Framework for Aerodynamic Design Optimization on Unstructured Meshes
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BibTeX
@MISC{Nielsen_implementationof,
author = {E. J. Nielsen and W. K. Anderson and D. K. Kaushik},
title = {Implementation of a Parallel Framework for Aerodynamic Design Optimization on Unstructured Meshes},
year = {}
}
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Abstract
A parallel framework for performing aerodynamic design optimizations on unstructured meshes is described. The approach utilizes a discrete adjoint formulation which has previously been implemented in a sequential environment and is based on the three-dimensional Reynolds-averaged Navier-Stokes equations coupled with a one-equation turbulence model. Here, only the inviscid terms are treated in order to develop a basic foundation for a multiprocessor design methodology. A parallel version of the adjoint solver is developed using a library of MPI-based linear and nonlinear solvers known as PETSc, while a shared-memory approach is taken for the mesh movement and gradient evaluation codes. Parallel efficiencies are demonstrated and the linearization of the residual is shown to remain valid.
Keyphrases
parallel framework unstructured mesh aerodynamic design optimization shared-memory approach sequential environment nonlinear solver multiprocessor design methodology adjoint solver gradient evaluation code parallel efficiency basic foundation discrete adjoint formulation mesh movement one-equation turbulence model three-dimensional reynolds-averaged navier-stokes equation inviscid term parallel version
